摘要
针对微放电测试所需大功率微波源的需求,试验研究了一种用于微放电测试的S波段注入锁频磁控管试验方法。基于注入锁频连续波磁控管的理论,试验得到了磁控管的注入锁频带宽与注入比成正比关系。改变阳极电流,得到磁控管输出功率389~1 150W。通过注入锁频抑制了磁控管输出信号的边带噪声,提高注入功率拓宽了磁控管的锁频带宽,获得了高达12.6MHz的注入锁频带宽。在同时注入双频参考信号的锁频试验中,观察到了磁控管注入双锁频、杂散抑制功和功率分配的现象。该试验的结果为用于微波大功率微放电的微波源提供了试验依据。
S-band inject-locking magnetron experiment for the ground multipactor discharge test was proposed for the large power microwave source of satellite. The directly proportional relation between the magnetron inject-locking bandwidth and the injection ratio was studied based on the inject-locking continuous wave magnetron theory.The magnetron output power varied from 389W to 1150W by tuning the magnetron anode current. The injection locking bandwidth at S band of the 1 kW continuous wave magnetron was broadened to 12.6 MHz by increasing the injected power. Dual-frequency inject-locking, spurious suppression and power distribution were observed in the two-tone injection experiments.
作者
陈潇杰
刘臻龙
刘长军
CHEN Xiaojie LIU Zhenlong LIU Changjun(School of Electronics and Information Engineering, Sichuan University, Chengdu 610064, China)
出处
《中国空间科学技术》
EI
CSCD
北大核心
2017年第2期96-102,共7页
Chinese Space Science and Technology
基金
973计划(2013CB328902)
国家自然科学基金(61271074)
关键词
卫星天线
微波器件
微放电
连续波磁控管
注入锁频
锁频带宽
satellite antenna
microwave device
multipactor discharge
continuous wave magnetron
inject-locking
locking bandwidth
